Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The start of December comes with a small reduction in the average high-temperature, subtly receding from an enjoyable 61.7°F (16.5°C) in November to a cool 54.1°F (12.3°C). Throughout December, an average low-temperature of 39.7°F (4.3°C) is expected.Humidity
December is the most humid month, with an average relative humidity of 79%.Rainfall
The month with the most rainfall is December, when the rain falls for 12.6 days and typically aggregates up to 4.09" (104mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In New Castle, in December, snow falls for 0.8 days, with typically accumulated 0.43" (11mm) of snow. Throughout the year, there are 4 snowfall days, and 1.81" (46mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 6:34 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 4:49 pm CST.
Sunshine
In New Castle, the average sunshine in December is 4.9h.UV index
The months with the lowest UV index in New Castle are January, February, November and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 3 during December leads to these advisories:
Be vigilant - Suggestions to stave off sun damage are provided. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the most humid month?
What is the average humidity in December?
What is the wettest month?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does New Castle have in December?
When are sunrise and sunset in December in New Castle?
How many hours of sunshine does New Castle have in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
New Castle, AL
- Average high temperature in December: 54.1°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (50.7°F).
- Average low temperature in December: 39.7°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in December
New Castle, AL
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
New Castle, AL
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).
Average humidity in December
New Castle, AL
- Average humidity in December: 79%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
New Castle, AL
- Average rainfall in December: 4.09"
The wettest month (with the highest rainfall) is December (4.09").
The driest month (with the least rainfall) is October (2.09").
Average rainfall days in December
New Castle, AL
- Average rainfall days in December: 12.6 days
The month with the highest number of rainy days is July (21.7 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in December
New Castle, AL
- Average snowfall in December: 0.43"
The month with the highest snowfall is January (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
New Castle, AL
- Average snowfall days in December: 0.8 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
New Castle, AL
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 4h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
New Castle, AL
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is July (7.2 days).
Average UV index in December
New Castle, AL
- Average UV index in December: 3
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
New Castle, AL
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and September (Cloud cover 29).
Average visibility in December
New Castle, AL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
New Castle, Alabama, USA
Weather forecast for your location
2. Allow the app to use your location